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  <title>Fetch all HTTP request headers</title>

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 <div class="refnamediv">
  <h1 class="refname">nsapi_request_headers</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.3.3, PHP 5)</p><p class="refpurpose"><span class="refname">nsapi_request_headers</span> &mdash; <span class="dc-title">Fetch all HTTP request headers</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.nsapi-request-headers-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">array</span> <span class="methodname"><strong>nsapi_request_headers</strong></span>
    ( <span class="methodparam">void</span>
   )</div>

  <p class="para rdfs-comment">
   <span class="function"><strong>nsapi_request_headers()</strong></span> gets all the HTTP headers in
   the current request. This is only supported when PHP runs as a 
   <span class="productname">NSAPI</span> module.
  </p>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <p class="para">
    Prior to PHP 4.3.3, <span class="function"><a href="function.getallheaders.html" class="function">getallheaders()</a></span> was only 
    available for the Apache servers.  After PHP 4.3.3,
    <span class="function"><a href="function.getallheaders.html" class="function">getallheaders()</a></span> is an alias for
    <span class="function"><strong>nsapi_request_headers()</strong></span> if you use the NSAPI module.
   </p>
  </p></blockquote>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <p class="para">
    You can also get at the value of the common CGI variables by
    reading them from the <var class="varname"><var class="varname"><a href="reserved.variables.server.html" class="classname">$_SERVER</a></var></var> superglobal, which 
    works whether or not you are using PHP as a 
    <span class="productname">NSAPI</span> module.
   </p>
  </p></blockquote>
 </div>

 <div class="refsect1 returnvalues" id="refsect1-function.nsapi-request-headers-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns an associative array with all the HTTP headers.
  </p>
 </div>

 <div class="refsect1 examples" id="refsect1-function.nsapi-request-headers-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-4662">
    <p><strong>Example #1 <span class="function"><strong>nsapi_request_headers()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$headers&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">nsapi_request_headers</span><span style="color: #007700">();<br /><br />foreach&nbsp;(</span><span style="color: #0000BB">$headers&nbsp;</span><span style="color: #007700">as&nbsp;</span><span style="color: #0000BB">$header&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">$value</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"</span><span style="color: #0000BB">$header</span><span style="color: #DD0000">:&nbsp;</span><span style="color: #0000BB">$value</span><span style="color: #DD0000">&nbsp;&lt;br&nbsp;/&gt;\n"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
 </div>

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